Truss



J. L. BRENNAN.

TRUSS.

APPLICATION FILED MAR. 23, 1920.

Patented Dec. 28, 1920.

2 SHEETS-SHEET L INVENTOR ATTORNEY J. L. BRENNAN.

TRUSS.

APPLICATION FILED MAR. 23, 1920.

Patented Dec. 28, 1920.

2 SHEETS-SHEET 2.

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INVENT OR AT '(GRNEY wrmass E5:

UNITED STATES PATENT OFFICE.

JAMES L. BRENNAN, OF MARSHALL, MICHIGAN.

TRUSS.

Application filed March 23, 1920. Serial No. 368,197.

To all whom it may concern:

Be it known that I, JAMES L. BRENNAN, a citizen of the United States, residing at Marshall, in the county of Calhoun and State of Michigan, have invented new and useful Improvements in Trusses, of which the fol lowing is a specification.

The present invention has reference to improvements in surgical appliances, and may be considered in thenature of an improvement on the truss upon which I received United States Letters Patent #1,253,135, granted to me on January 8, 1918.

Other objects and advantages will appear as the nature of the invention is more fully understood, reference being had to the drawings, accompanying this specification.

In the drawings:

Figure 1 is a view illustrating the application of the improvement. v

Fig. 2 is a perspective view of the complete device.

Fig. 8 is a sectional view approximately on the line 3-3 of Fig. 2.

Fig. 4 is a sectional view approximately on the line &-1 of Fig. 3.

Fig. 5 is a perspective view of a pad a cover and strap removed.

Fig. 6 is a perspective view of a base or body member of the improvement.

Fig. 7 is a plan view looking toward the back of the base or body member.

Fig. 8 is a perspective view of one of the wedge members or shims that may be employed.

Fig. 9 is a detail sectional view showing the manner in which the shim is employed for building out the pad.

In my Patent #1,253,135 ,the pad is centrally concaved. The absorbent strip that constitutes the cushion is gradually decreased in width from its outer to its inner end, so that when this strip is wound upon itself to provide an elliptical body, the outer face thereof is dished or concaved. This method of constructing the cushion, I find to be expensive, as the absorbent strip from which the same is formed must be especially manufactured. In addition to this, it is necessary core to which the inner and reduced end of the strip is connected, and this core is secured to the body member or plate of the truss. In addition to this, I have found the means of attaching the pad to the under strap unsatisfactory as the same does not with for me to employ a compressible permit of the pad being effectively sustained desired angles on the strap. Also I have found that in certain classes of rupture the cushion must be built out at desired points, which cannot be readily accomplished by my patented construction. It is therefore, to be considered the primary objects of the present invention to overcome the deliciencies in my patented construction as above set forth.

Referring now to the drawings in detail, the numeral 10 designates the flat elliptical body member or plate of the improvement The body is preferably, but not necessarily constructed of wood and has its outer face dished to provide an elliptical concavity 11. The body 10 is provided with a continuous peripheral groove 12 and has its rear face at its outer edge formed with a continuous pllepression 13. The back 14 of the body is The cushion of the improvement is constructed from a single strand of tape of a compressible and absorbent nature. The cushion 15 is formed by winding the tape on itself to provide an elliptical body that is received in the conveXed face of the body 10.'

The tape from which the cushion is formed is of an equal width and thickness throughout but by arranging the same on the body 10, as set forth, the central portion of the cushion is provided with a depression or concavity, which is an essential feature in this class of devices. The inner end of the cushion is secured on the body 10 preferably through the medium of an elastic 16 that has its ends knotted after the same has been passed through spaced openings 17 in the body 10. On the cushion 15 is the soft washable cover 18. The cover comprises an elliptical shaped fabric of a size to have its edges disposed around the edges of the body 10, and to secure the cover to the body I employ a tying cord 19 that forces the outer edge of the cover into the groove 12, the ends of the cord being, of course connected together after the cover has been secured to the body. The cover, at the center thereof is connected to the cushion and to the body 10 by the elastic 16, so that the outer surface of the cover conforms to the concave outer surface of the cushion.

In treating ruptures of a certain nature, I have found it necessary to build out the cushion and to accomplish this I employ a wedgeshaped shim 12, preferably of wood.

The shim is tacked to the body 10, so that the cushion rests thereagainst. Any number of these shims may be employed.

In the roove 12 there is a continuous band 21. The band is elliptical so that the same hugs the inner shoulder provided by the depression 13 in the body 10. band is the stitched looped end 22 of the under strap 23, the said strap 23 having its outer or free end adjustably sustained on the supporting belt 24:, and to this belt the pad is also .pivotally secured. 0n the back 14 of the body 10 is an elliptical plate 25. This plate is secured to thebody by four equi-distantly arranged screws 26 and the end 22 of the under strap is at all. times disposed between two of such screws. lhe depression 13 is comparatively shallow so that the plate will frictionally contact with the looped end '22 of the under strap, and when the screws are driven home, this frictional engagement of the plate on the loop will hold the under strap at varying desired positions with respect to the body. This is also a very important feature of the invention, as by removing and adjusting the screws 45, the pad may be arranged sustained at varying angles or positions with respect to theunderstrap and the supporting belt, in accordance with the character of the rupture treated.

Having thus described my invention what I claim as new is V 1. In a rupture appliance, a pad includ- On this ing an oval body having an outer concaved face, an absorbent cushion made up of an elliptically wound tape received in the concavity and centrally secured to the body, a cover centrally connected to the pad and to the edge of the body, an elliptical loop on the back of the body, an under strap slidable thereon, and a back plate on the body frictionally contacting with the under strap.

2. In a rupture appliance, a pad includ ing an oval body having an upper concaved face, an absorbent cushion inthe concavity,

a cover therefor, a shim between the body and cushion, and an under strap slidable on the back of the body and having means for binding the same against the body to hold said strap against movement on the body.

3. In a rupture appliance, a pad including an oval body, having its outer face dished and its rear face depressed at the corner thereof, a cushion comprising a member of equal thickness throughout received in the dished face of the body and centrally secured thereto, a cover for the cushion, a continuous band in the depression, an understrap having a looped.end on the band, a plate on the back of the body, and adjustable and removable means securing the plate to the body causing the same to bind against thelooped end of the strap to compress the latter against the body.

In testimony whereof I affix my signature.

, JAMES L. BRENNAN. 

